This reference section belongs to Formicoxenus Mayr, 1855
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Genus Formicoxenus catalogues
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Dalla Torre, 1893: 62; Emery, 1924f: 263, 264 (Symmyrmica, Formicoxenus); Smith, 1951c: 822 (Symmyrmica); Smith, 1979: 1398 (Symmyrmica); Bolton, 1995b: 206.